2018 Feb 10 0400 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.943728 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.87755 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 10.1199 Z-Class : E [ p-Class Determination ] Asymmetry factor of penumbral shape : 24.8494 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.3827212 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.159091 p-Class : s [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.457952 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Esi [ Magnetic Class Determination ] Magnetic Class : Beta